Early stages of glacial clustering in supercooled triphenyl phosphite
Early stages of glacial clustering in supercooled triphenyl phosphite
复制标题
过冷亚磷酸三苯酯冰川聚集的早期阶段
DOI：
10.1103/physrevb.64.045410
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发表时间：
2001
影响因子：
3.7
通讯作者：
J. Yarger
中科院分区：
文献类型：
--
作者：
B. Schwickert;S. Kline;H. Zimmermann;K. M. Lantzky;J. Yarger
在NIST中子研究中心进行的小角中子散射实验中，在210 K到214 K的温度区间内观察到亚磷酸三苯酯的冰相聚集和生长。提出的是半径，体积分数，和多分散性的集群的冰川相包围的过冷液体。这些数据可以用~I！集群形成，~II！快速成核，~III！凝聚，最后~IV！饱和度集群增长的两个方案可以确定。第一个是半径停滞区~II！，随后是体积停滞区~III！。集群大小的增加和集群数量的增加之间的竞争是从这种行为推导出来的。
Glacial phase clustering and growth in triphenyl phosphite is observed in the temperature interval of 210 K to 214 K by small angle neutron scattering performed at the NIST Center for Neutron Research. Presented are the radius, volume fraction, and polydispersity of clusters of glacial phase surrounded by a supercooled liquid. The data can be interpreted in a four-step model of ~I! cluster formation, ~II! rapid nucleation, ~III! agglomeration, and finally ~IV! saturation. Two schemes of cluster growth can be identified. The first one is a region of radius stagnation ~II!, which is followed by a region of volume stagnation ~III!. Competition between the increase in cluster size and the increase in the number of clusters is deduced from this behavior.